REPRODUCTIVE ENDOCRINOLOGY IN BIRDS 



1169 



WiTSCHi, E. 1935. Seasonal sex characters in 

 birds and their hormonal control. Wilson Bull., 

 47, 177-188. 



WiTSCHi, E. 1937. Effect of gonadotropic and 

 oestrogenic liormones on regenerating feathers 

 of Weaver finches {Pyromelana jranciscana). 

 Proc. Soc. Exper. Biol. & Med., 35, 484-489. 



WiTSCHi, E. 1955. Vertebrate gonadotrophins. 

 In Comparative Physiology of Reproduction. 

 Memoirs Soc. Endocrinol., 4, 149-163. 



WiTSCHi, E., AND FuGO, N. W. 1940. Response of 

 sex characters of the adult female starling to 

 synthetic hormones. Proc. Soc. Exper. BioL & 

 Med., 45, 10-14. 



WiTscHi, E., .\ND Riley, G. M. 1940. Quantita- 

 tive studies on the hormones of human pi- 

 tuitaries. Endocrinology, 26, 565-576. 



WiTSCHI, E., St.ANLEY, a. J., .^ND RiLEY, G. M. 



1937. Gonadotropic hormones of the hypophy- 

 sis of the turkev. Proc. Soc. Exper. Biol & 

 Med., 36, 647-651. 



WoLFSON, A. 1945. The role of the pituitary, fat 

 deposition and body weight in bird migration. 

 Condor, 47, 95-127^ 



WoLFSON, A. 1954a. Notes on the cloacal pro- 

 tuberance, seminal vesicles, and a possible 

 copulatory organ in small passerine birds. Bull. 

 Chicago Acad. Sc, 1954. 10, 1-23. 



WoLFSON, A. 1954b. Sperm storage at lower-than- 

 body temperature outside the body cavity of 

 some passerine birds. Science, 120, 68-71. 



WoLFSON, A. 1959a. Ecologic and physiologic 

 factors in the regulation of spring migration 

 and reproductive cycles in birds. In Compara- 

 tive Endocrinology, A. Gorbman, Ed., pp. 38- 

 70. New York: John Wiley & Son. 



WoLFSON, A. 1959b. The role of light and dark- 

 ness in the regulation of spring migration and 

 reproductive cycles in birds. In Photoperiodism, 

 R. B. Withrow, Ed. A. A. A. S. Publication 55, 

 pp. 679-716. 



WoLFSON, A., AND HARRIS, B. K. 1959. Main- 

 tenance of gonadal activity with testosterone 

 following inhibition of the pituitary with short 

 days. Anat. Rec, 134, 656. 



WoMACK, E. B., Koch, F. C, Domm, L. V., and Juhn, 

 M. 1931. Some factors affecting the comb 

 growth response in the Brown Leghorn Capons. 

 J. Pharmacol. & Exper. Therap., 41, 173-178. 



Wong, H. Y. C, and Hawthorne, E. W. 1954. In- 

 fluence of filtered and no sunlight on weight and 

 comb response in androgen treated cockerels. 

 Am. J. Physiol., 179, 419-420. 



Wong, H. Y. C., Lavenda, N., Hawthorne, E. W. 

 1954. Effect of exercise on comb response of 

 androgen-treated capons. Am. J. Physiol., 178, 

 269-270. 



Yao, T. S., ATSiD Olsen, M. W. 1955. Microscopic 

 observations of parthenogenetic embryonic 

 tissues from virgin turkey eggs. J. Hered., 46, 

 133-134. 



Yeates, N. T. M. 1954. Day light changes. In 

 Progress in the Physiology oj Farm Animals, 

 J. Hammond, Ed., Vol. I, pp. 363-392. London: 

 Buttersworth & Company. 



Young, W. C. 1953. Gamete-age at the time of 

 fertilization and the course of gestation in 

 mammals. In Pregnancy Wastage, E. T. Engle, 

 Ed., pp. 38-50. Springfield, 111.: Charles C 

 Thomas. 



Z.4RR0W, M. X., .AND Bastian, J. W. 1953. Block- 

 ade of ovulation in the hen with adrenolytic 

 and parasympatholytic drugs. Proc. Soc. Exper. 

 Biol. & Med., 84, 457-459. 



ZaRROW, M. X., KORETSKY. I. B., AND ZaRROW, I. G. 



1951. Failure of folic acid antagonist to inter- 

 fere with the action of testosterone propionate 

 on the combs and testes of young cockerels. 

 Endocrinology, 48, 125-132. 

 Zuckerman, S. 1955. The possible functional sig- 

 nificance of the pituitary portal vessels. Ciba 

 Foundation Colloquia Endocrinol., 8, 551-586. 



